Paper-roll adjustment for typewriters, etc.



PAPER ROLL ADJUSTMENT FOR TYPEWRITERS, ETC' Filed .Aug 27, 1.928

INVENTOR l 0 J, Q l BY n, ai!

Patented Apr. 29, 1930 UNITED s'rmssv PATENT OFFICE CHARLES W. JEFFBIES,F LAKE CIIARLES,.LOUISIANA, ASSIGNOR ONE-HALF TO EARL C. REID, OF LAKECHARLES, LOUISIANA PAPER-ROLL ADJUSTMENT FOR TYPEWRITERS, ETC.

Application 'iled August 27, 1928. Serial' No. 302,220.

The Object of this invention is the pro. vision of a crosswiseadjustment or shift of the paper when arranged between the platen andpresser rolls of typewriters, adding machines or the like, and ,which isespecially desirable when the paper is put back into the machine to makecorrectional work or to make additional work.

The invention will be fully and comprehensively understood from `aconsideration.

and modifications may be made therefrom as do'not aii'ect the spirit ofthe inventionlnor exceed the scope thereof as expressed in the appendedclaims.

In the drawings; y Figure 1 is a plan view of the platen of a typewriteror like machine embodying my improvement, parts being' broken away andparts in section.

Figure 2 is a plan view of the presser roll which normally contacts withthe platen:

Figure 3 is a side elevation of the improvement.

Figure 4 is a sectional view approximately on the line 4-4 of Figure 3.

Figure, 5 is a sectional view approximately on the line 5 5 of Figure 1.

The side members ofa frame for a typewriting, adding machine orthe likeare indicated in Figure 1 of the drawings by the numeral 1. The members1 have alining 'bearings 2 for sleeves 3. The sleeves have continuousgrooves that receivetherein annular ribs 4 in the bearings. The sleevespass through suitable openings inthe center of the periphally knurledturning wheels 5 and 6 for the platen 7 on the machine.

`number of rolls 23 proper.

these bores there is the cross sectionally squared trunnions 8 and 9 onthe ends of the platen. The trunnion 9 is of a materially greater lengththan the trunnion 8 and has its end reduced and threaded, as at 10. Theouter end of the sleeve through which the th. caded end 10 of thetrunnion 9 passes is `formed with an outwardly directed Harige 11 thatis designed for coengagement with an inwardly directed iiange 12 on acollar 13. The outer end of the collaris provided with an outwardlydirected flange 14. Received within the collar, and' screwed on thethreaded end 10 of the trunnion 9 there is a crossY sectionallyroundedblock 15, and a pin 16 connects this block to the collar 13.Surrounding the collar 13 there is an exteriorly knurled cylindrical capmember 17 that has in its bore oppositely directed longitudinallyextending ribs 18 that are received in grooves `19 in the collar 13. Theribs 18 extend a suitable distance from what may be termed theinner endof the cap 17, and the grooves 19 are formed on the thickened. outerporof the collar 13 and the ribs l18 there is a helical spring 20 whichforces the cap member 17 toward the wheel 6, and brings the lugs 21 onthe said cap member into notches 22 on the outer face of thewheel 6,thereby latching the cap to the said wheel. 6.

The presser rolls are disclosed by Figure 2 of the drawings, and includean desired trally fixed on a shaft 24 andthe shaft 24 isv 'slidablymounted in "hanger supports 25.

The outer ends of the shaft 24 are provided with removable heads 26 andexerting a pressure between these heads and the outer hangers 25 thereare light coil springs 27. The

springs 27 normally hold the shaft 24, and

The rol s are cen- Vtion of the collar 13. Between the flange 14consequently the rolls 23 in one position with ,and when the platen' isto be shifted laterally with respect to the supporting frame of themachine, it is nierely necessary to grasp the cap member 17 to iii-stbring its lugs out of the notches 22. The cap member 17 will,ofconrse,compress the spring 20 and by turning the cap ineinber the ribs thereofengaging in the grooves 19 of the collai 13 will rotate the said collarand the collar being connected by the pin 1G to the block or nut 15which engages the threaded end 10 of the truunion 9, will impart alongitudinal movement to the said trunnion, by causing the threaded endthereof to be screwed in the bore of tliesaid nut and consequently willmove the platen 7 longitudinally with. respect to its supporting frame.The presser rolls are, of course, in contact with the paper and exert africtional engagement therewith sufficient to cause the said paper tomove with the platen 7. The springs 27 between the headed ends of ltheshaft 24 for the rolls 23 are, as stated, comparatively.

.direction to bring its fingers opposite the notches E22 in the platenoperating wheel G the spring 2() will move thecap member, and theelements associated therewith to their initial position, that is, to aposition which will per- Vmit of the lugs 21 and the cap member againentering the notches 22 on the wheel 6, so that the platen, paper androlls will be returned to their initial or normal position. The longitudinal movement of the platen is comparatively slight and as previouslystated, the paper will nieve with the platen and will not be retarded bythe presser roll should matter already7 typed on the paper be arrangedto aline with other matter to be typed thereon. Having described theinvention, I claim:

' 1. In a device for the purpose set forth, the combination with aplaten roll, having square trnnnions on the ends thereof, sleeveshavingsquared bores receiving the trunnions therethrough,supports forthe sleeves holding the same from longitudinal movement, a turning wheelon each sleeve, oneof said triv ii n 1 ions having a threaded endprojecting through the sleeve, a block comprising a nut which is screwedon said end. a collar surrounding the block and having an inner lippedengagement with the sleeve, a` cvlindrical cap member arranged over thecollar, intercngagiiig therewith and having spring means influencing thesaid cap in one direction, lugs on the inner end of the cap, and theturning wheel adjacent to said cap having notches to receive the lugstherein, and connecting means between the block and the collar.

2. 'In a device for the purpose set forth, a platen having trunnioiisextending from the ends thereof which are square in cross section, asleeve having a squared bore in which each of the trunnions is received,a support for each sleeve permitting the rotation of the sleevestherein, but holding said sleeves vfrom longitudinal movement, anoperating wheel fixed on each sleeve, one of said wheels having itsouter face provided with spaced notches, and the sleeve for this wheelhaving its end projected therebeyoiid and iianged, the trunnion receivedin the mentioned sleeve having its end reduced and threaded, a block,having a threaded bore for engaging the end of the trunnion, a collar,having its opposite ends flanged, arranged over and secured to 'theblock, and one of said flanges being in contact with the anged end ofthe sleeve, said collar having spaced longitudinal depressions in theperiplier i thereof, a crosssectioiially rounded cap having inwardly eXtending ribs which are received in the mentioned depressions, springmeans contacting vbetween the ribs and the outer tiange of the collarfor forcing the cap toward the turning wheel and said cap having lugs onthe inner end thereof to be received in the notches in the turningwheel.

`3. In a device for the purpose set forth, a platen roll and a presserroll frictionally contacting with paper on the platenvroll and bearingsfor both of the rolls and means for imparting a slight longitudinaladjustment of the platen in its bearings and for locking the saine soadjusted, said presser roll being longitudinally movable in its bearingsand light spring means normally holding the presser roll from suchlongitudinal movenient 4. i a device for the purpose set forth, a platei.Soll designed to have a paper arranged thereagainst and a presser rollfrictionally engaging with the paper for holding the same against theplaten roll, and bearings for both rolls, means operable to cause aslight longitudinal adjustment of the platen roll through its bearingsand by virtue of the frictional engagement of the paper and the presserrolls to impart a like movement to the paper and to the presser rolls, ashaft for the presser roll which is slidable through its bearings,headed elements-on the ends of the shaft and light spring meanssurrounding the shaft, 'contacting with said elements and with thebearings adjacent to said elements for normally retaining the presserroll. in one position.

5. A presser roll for the purpose set forth,

comprising a plurality of spaced rolls, a'

sol

shaft on which the rolls are xed, hangers providing bearings for theshaftA and. through which bearings the shaft is loosely mounted,

l headed elements en the ends of the shaft and light toill springssurrounding said ends of the shaft and exerting a pressure between theheaded elements andthe bearings adjacent thereto for normally holdingthe shaft and rolls thereon from longitudlnal move! ment through thehangers. I

In testimony whereof I afx my signature.

CHARLES W. JEFFRIES.

